Finding the Fourth Proportional to 7,429.59, 11,141.72 and 3,480.17

Step by Step Solution

1. Step 1: Write the proportion equation
   7,429.59 : 11,141.72 = 3,480.17 : x
2. Step 2: Convert to fraction form
   7,429.59/11,141.72 = 3,480.17/x
3. Step 3: Cross multiply
   7,429.59x = 11,141.72 × 3,480.17
4. Step 4: Simplify right side
   7,429.59x = 38,775,074.47
5. Step 5: Solve for x
   x = 38,775,074.47/7,429.59
6. Step 6: Final answer
   x = 5,219.01